*{margin: 0;padding: 0;}
ul li{list-style: none;}
img{display: block;}
a{text-decoration:none ;
color: black;}
input,textarea{outline: none;}
.wnqc:after{
	content: "123";
	display: block;
	clear: both;
    width: 0px;
    height: 0px;
	visibility: hidden;	
}

.black-belt{
    width: 100%;
    height: 42px;
    background-color: black;
}
.blackxin{
    margin: auto;
    width: 1240px;
    height: 42px;
    display: flex;
    justify-content: space-between; 
}
.app{
     font-size: 12px;
     color:#fff;
     line-height: 42px;
}

.chinese{
    font-size: 12px;
    color: white;
    line-height: 42px;
}

.top{
    width: 100%;
    height: 60px;
}

.topxin{
    width: 1240px;
    height: 60px;
    margin: auto;
    position: relative;
}
.topxin img{
    width: 200px;
    height: 50px;
}
.ikea{
    float: left;
    margin-top: 10px;
}


li {
        list-style-type: none;
}

.container {
        width: 450px;
        margin-left: 80px;
        position: relative;
        margin-top: 50px;
        float: left;
}

.small-img {
        width: 450px;
        height: 450px;
        border: gainsboro solid 1px;
}

.small-img img {
        width: 100%;
        height: 100%;
}

.focus {
        width: 300px;
        height: 300px;
        background: #FEDE4F;
        opacity: 0.4;
        position: absolute;
        left: 0;
        top: 0;
        display: none;
}

.big-img {
        position: absolute;
        left: 450px;
        top: 0;
        width: 500px;
        height: 500px;
        overflow: hidden;
        display: none;
}

.big-img img {
        position: absolute;
        left: 0;
        top: 0;
        width: 750px;
        height: 750px;
}

.img-list {
        display: flex;
    
}

.introduce{
    width: 380px;
    height: 800px;
    float: left;
    margin-left: 200px;

}

.p1{
    width: 200px;
    height: 30px;
    background-color: #ffecca;
    font-size: 16px;
    text-align: center;
    line-height: 30px;
    margin-top: 30px;
    margin-bottom: 30px;
    color: goldenrod;
}

.s1{  
    
    margin-top: 30px;
    font-size: 20px;
    font-weight: 600;
  
    
}

.s2{
    font-size: 20px;
    font-weight: 600;
  
}

.p2{
    margin-top: 30px;
    font-size: 14px;
    color: grey;
    margin-bottom: 30px;
}

.num-int{
    width: 60px;
    height: 30px;
    border-radius: 20px;
    font-size: 16px;
    text-align: center;
}

.num{
    margin-top: 30px;
}
.p3{
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}

#btn{
width: 160px;
height: 60px;
border-radius: 20px;
background-color: slateblue;
opacity: .5;
margin-top: 20px;
font-size: 18px;
font-weight: 600;
color: white;
}

.word{
    width: 800px;
 
    margin: auto;
}


.word p{
    font-size: 18px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    text-indent: 2em;
}

.di{
    width: 100%;
    height: 500px;
    background-color: #f5f5f5;
}

.down{
    width: 1240px;
    height: 500px;
    margin: auto;
}

.down h3{
    width: 300px;
    height: 32px;
    padding-top: 50px;
}

.down>.p1{
    width: 284px;
    height: 42px;
    font-size: 12px;
}

.join{
    display: inline-block;
    cursor: pointer;
    width: 10rem;
    text-align: center;
    height: 2.5rem;
    border: none;
    margin-top: 2.6rem;
    background: #111;
    border-radius: 1.75rem;
    font-style: normal;
    font-weight: 700;
    font-size: .75rem;
    line-height: 2.5rem;
    color: #fff;
    
}

.downlef{
    width: 310px;
    height: 276px;
    float: left;
}

.u1{
    width: 180px;
    height: 260px;
    float: left;
    font-size: 16px;
    padding-top: 50px;
    margin-left: 40px;
}
 .u1 ul li{
     margin-top: 15px;
 }

 .u1 ul li:hover{
    text-decoration:underline;
 }

 .li1{
     font-size: 16px;
     font-weight: 600;
 }